Harmonize CI & files #34

Job	Run time
Tests / Fetch supported versions	5s
Tests / Static analysis	21s
Tests / Bare minimum - Special case - Symfony 5.4	18s
Tests / Up to date versions - Special case - Symfony 5.4	3m 32s
Tests / Bare minimum	21s
Tests / Late migration - PHP	17s
Tests / Late migration - Symfony	2m 9s
Tests / Up to date versions	3m 36s
Tests / Nightly - PHP - With lowest supported Symfony versions	16s
Tests / Nightly - Symfony - With highest supported PHP version	12s
Tests / Nightly - Symfony - With lowest supported PHP version	21s
Tests / Nightly - PHP - With highest supported Symfony versions	22s
	11m 50s

Provide feedback